/* CedillaAtom.java
 * =========================================================================
 * This file is part of the JLaTeXMath Library - http://forge.scilab.org/jlatexmath
 *
 * Copyright (C) 2009 DENIZET Calixte
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * A copy of the GNU General Public License can be found in the file
 * LICENSE.txt provided with the source distribution of this program (see
 * the META-INF directory in the source jar). This license can also be
 * found on the GNU website at http://www.gnu.org/licenses/gpl.html.
 *
 * If you did not receive a copy of the GNU General Public License along
 * with this program, contact the lead developer, or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * Linking this library statically or dynamically with other modules
 * is making a combined work based on this library. Thus, the terms
 * and conditions of the GNU General Public License cover the whole
 * combination.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce
 * an executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under terms
 * of your choice, provided that you also meet, for each linked independent
 * module, the terms and conditions of the license of that module.
 * An independent module is a module which is not derived from or based
 * on this library. If you modify this library, you may extend this exception
 * to your version of the library, but you are not obliged to do so.
 * If you do not wish to do so, delete this exception statement from your
 * version.
 *
 */

package com.himamis.retex.renderer.share;

/**
 * An atom with a cedilla.
 */
public class CedillaAtom extends Atom {

	private Atom base;
	private static final SymbolAtom CEDILLA = SymbolAtom
			.get("jlatexmathcedilla");


	public CedillaAtom(Atom base) {
		this.base = base;
	}

	@Override
	public Box createBox(TeXEnvironment env) {
		Box b = base.createBox(env);
		VerticalBox vb = new VerticalBox();
		vb.add(b);
		Char ch = env.getTeXFont().getChar(CEDILLA.getCf(), env.getStyle());
		double italic = ch.getItalic();
		Box cedilla = new CharBox(ch);
		Box y;
		if (Math.abs(italic) > TeXFormula.PREC) {
			HorizontalBox hb = new HorizontalBox(
					new StrutBox(-italic, 0, 0, 0));
			hb.add(cedilla);
			y = hb;
		} else {
			y = cedilla;
		}

		Box ce = new HorizontalBox(y, b.getWidth(), TeXConstants.Align.CENTER);
		double x = 0.4 * Unit.MU.getFactor(env);
		vb.add(new StrutBox(0, -x, 0, 0));
		vb.add(ce);
		double f = vb.getHeight() + vb.getDepth();
		vb.setHeight(b.getHeight());
		vb.setDepth(f - b.getHeight());
		return vb;
	}
}
